There was once a time where EA threw Battlefield into the future with not much success. Long before Call of Duty decided to throw us into space or give us jetpacks and wall riding, Battlefield 2142 was already way out into the open. While it may have been too ambitious a project for technology at the time, or just something people didn't really want back then, the game wasn't a much of a success.
Then, to rub it in further, the game went dark. Gamespy and its complete online infrastructure was shuttered dragging a long list of online games down into the abyss with it. Completely unplayable online, Battlefield 2142 was to be forgotten - until modders brought the game back online through some form of technical witchcraft.
Battlefield 2142 Revive brings the entire game back from the grave. It doesn't even require a paid copy of the game (some how) with download mirrors available through the Revive site itself.
It may not look like much being 10 years old, but Battlefield 2142 was rather revolutionary at the time bringing heaps of creatuve weaponry to the classic large-scale multiplayer shooter. Grab the mod (and the game) here, if you're interested. There's even a movement guide featured on the site - and posted below - because it was apparently that tough to get around.